Data sheet
BMT-F-DIO4/2 BACnet MS/TP
Page 1/7
P/N
110883132670
EAN 4251394620794
2020/05/05
Version: B
Illustrations
Principle diagram Wiring
See enlarged drawings at the end of document
Product specification
The BACnet MS/TP module with 4 digital inputs and 2 relay outputs with manual control was developed for decentralized switching tasks. It is
suitable for accommodating, for example, light switches and window contacts in a room, switching two light strips or controlling louvers. It can
also be used to control 2 motorized fire dampers. In this case it is necessary to protect the relay contacts by appropriate load-dependent
measures. The inputs can be used as contact or voltage inputs. The inputs and outputs can be switched and scanned by means of standard
objects via a BACnet client. The module address and the baud rate are set by means of two address switches on the front. Suitable for
decentralized mounting on DIN TH35 rail according to IEC 60715 in electrical distribution cabinets.
• Connection with spring clamp terminal blocks (push-in)
Data sheet
BMT-F-DIO4/2 BACnet MS/TP
Page 2/7
P/N
110883132670
EAN 4251394620794
2020/05/05
Version: B
Technical Data
Approvals
Open Energy Management Equipment 34TZ
BACnet is a registered trademark of ASHRAE. ASHRAE does not
endorse, approve or test products for compliance with ASHRAE
standards. Compliance of listed products to the requirements of
ASHRAE Standard 135 is the responsibility of BACnet
International (BI). BTL is a registered trademark of BI.
RS485 interface
Protocol BACnet MS/TP
Address range 00 - F9
Bus interface RS485 two wire bus with potential equalization in bus or line
topology, terminate with 120 Ohm
Transmission parameters
Transmission rate min. 9600 Bit/s (Bd) - max. 115200 Bit/s (Bd)
Transmission rate default setting 9600 Bit/s (Bd)
Parity None
Stopbits 1
Supply
Operating voltage 24 V AC/DC +/- 10 % (SELV)
Power consumption
Power consumption AC (max.) 200 mA
Power consumption DC (max.) 75 mA
Duty cycle relative 100 %
Inputs
Digital inputs 4
Voltage input 30 V AC/DC
High signal detection > 7 V AC/DC
Outputs
Digital outputs 2
Relay output 2 changeover contacts
Switching voltage 250 V AC
Continuous current 16 A / relay
Switch-on current (max.) 80 A < 20 ms
Total current across all outputs 25 A
Mechanical life 30x10
6
switching cycles
Electrical life 9x10
4
switching cycles